Robert Machray, who starred as Orson Welles on the stage and played Fire Marshal Dobbins on Cheers in an acting career that spanned five decades, has died. He was 79.

Machray died Sunday at his home in North Hollywood after enduring two strokes and a brief battle with dementia, his husband, Luigi Camperchioli, told The Hollywood Reporter.

He also showed up on episodes of Operation Petticoat, Three’s Company, Life Goes On, Roseanne, Sister, Sister, Suddenly Susan, Profiler, The Drew Carey Show, Girlfriends, Criminal Minds and Parks and Recreation, which in 2011 marked his final onscreen credit.

Machray portrayed Dobbins, often the victim of pranks at the bar, on four episodes of NBC’s Cheers during seasons eight, nine and 11 from 1990-93.

He appeared in the 1999-2000 Broadway revival of Amadeus that starred Michael Sheen and David Suchet and received a Los Angeles Drama Critics Circle prize in 2002 for his turn as Welles...